ASTM D7772-2011
炭黑可萃取性的标准试验方法.环己烷萃取物的吸光度
Standard Test Method for Carbon Black Extractables - Absorbance of Cyclohexane Extract
- 标准号
- ASTM D7772-2011
- 发布日期
- 2011年
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- G49
- 国际标准分类号
- 83.040.20 (Rubber compounding ingredients)
- 发布单位
- US-ASTM
- 适用范围
This procedure serves as a screening process for carbon blacks used in the manufacturing of products that are to come into contact with food. The cyclohexane extract absorbance at 386 nm must be less than 0.10 for a 50 mm cuvette in order to fulfill various regulatory requirements.
^SCOPE:1.1 This method covers the determination of extinction (absorbance) of carbon black cyclohexane extract at 386 nm using a UV spectrophotometer.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.1 This method covers the determination of extinction (absorbance) of carbon black cyclohexane extract at 386 nm using a UV spectrophotometer.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.